Monthly climate guide
Dublin weather in October
With highs near 13°C (56°F) and lows around 9°C (48°F), October feels cool in Dublin. Rainfall averages about 97 mm (wet) and the sky is often cloudy. Daytime highs are 3°C cooler than September and 3°C warmer than November.
What stands out in October
- Check the hourly forecast before heading to Trinity College & Book of Kells — showers are likely.
- There's little difference between day and night (around 4°C).
- October brings mid-autumn to Dublin.
Avg high
13°C
56°F
Avg low
9°C
48°F
Rainfall
97 mm
wet
Humidity
88%
relative
Sky
74%
cloud · often cloudy
Dublin weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 8°C / 46°F | 4°C / 39°F | 86 mm | 91% | 80% |
| February | 8°C / 46°F | 4°C / 39°F | 82 mm | 90% | 78% |
| March | 9°C / 48°F | 4°C / 39°F | 73 mm | 88% | 75% |
| April | 11°C / 52°F | 6°C / 42°F | 58 mm | 86% | 73% |
| May | 14°C / 56°F | 8°C / 46°F | 61 mm | 84% | 73% |
| June | 16°C / 61°F | 11°C / 51°F | 82 mm | 84% | 76% |
| July | 18°C / 64°F | 12°C / 54°F | 71 mm | 85% | 75% |
| August | 18°C / 64°F | 12°C / 54°F | 96 mm | 86% | 78% |
| September | 16°C / 61°F | 11°C / 51°F | 82 mm | 87% | 76% |
| October | 13°C / 56°F | 9°C / 48°F | 97 mm | 88% | 74% |
| November | 10°C / 50°F | 7°C / 44°F | 107 mm | 90% | 72% |
| December | 9°C / 47°F | 5°C / 41°F | 111 mm | 92% | 78% |
What to pack for October
- A warm sweater or fleece for layering
- A mid-weight jacket
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is October a good time to visit Dublin?
Our Dublin guide recommends: May to September for the mildest, driest weather — though Dublin's weather is changeable year-round.
Book Book of Kells and Guinness Storehouse tickets online ahead of time — both are popular enough to have queues without a timed slot.
Best time to visit Dublin →Other Ireland cities in October
Cite or embed this data
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Dublin weather in October. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/ireland/dublin/october
<a href="https://weathercompare.eu/weather/ireland/dublin/october">Dublin weather in October</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/ireland/dublin" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Dublin weather in October"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/ireland/dublin/october">Dublin weather in October</a> – WeatherCompare</p>
Dublin in October: quick answers
Is October a good time to visit Dublin?
October is one of the wetter months in Dublin, with about 97 mm of rain. You can still go: pack a rain jacket and keep plans flexible.
How warm is Dublin in October?
Average highs are about 13°C (56°F) and average lows about 9°C (48°F), based on 10 years of daily data.
Does it rain a lot in Dublin in October?
Dublin typically gets around 97 mm of rain in October — wet.
When is the best time to visit Dublin?
May to September for the mildest, driest weather — though Dublin's weather is changeable year-round.
Figures are long-term averages for the area around Dublin (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.